<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Declarative shadow DOM</title>
  </head>
  <body>
    <div id="host">
      <template shadowrootmode="open">
        <span>I'm in the shadow DOM</span>
      </template>
    </div>
    <!--
      Used in:
      - https://developer.mozilla.org/en-US/docs/Web/API/Web_components/Using_shadow_DOM
    -->
  </body>
</html>
